Performance Plastics Injection Molds Parts for Air MotorsMay 29, 2020 | Blog
The ability to mold unique and complex parts is what we take pride in a Performance Plastics. Our engineers are constantly pushing the limits of our machines and material in order to produce complex parts. We excel when using high performance plastics for challenging applications. Our most recent project we completed was injection molding vanes for various types of air motors.
Air motors produce continuous rotary power from compressed air. The vanes in the rotor cause the rotor to spin by sliding in and out when air is pushed into the rotor. The force differential created by the unbalanced force of air on the vanes causes the rotor to spin in one direction. Vanes are extremely important when it comes to how the motor performs. The torque of the motor correlates to the vane surfaces and pressure of the air. Vanes undergo a lot of friction wear and pressure, making material choice for this project challenging.
Vanes need to be made from material that have high strength, low creep, resistance to high temperatures, low friction wear and resistant to water and organic compounds. Any deformity or wear in the vane will take away from the torque of the motor. Therefore, we had to choose a high-performance plastic that will be able to handle the pressure of the compression inside the rotor without wearing or hindering the movement of the vane. The only two high performance plastic materials that fit the criteria are PEEK and Torlon®, two materials that we are experts in using at Performance Plastics. The mechanical properties in these high-performance plastics will allow for the vane effectively slide in and out of the rotor without causing damage to the vane.
To learn more about how Performance Plastics can help you with your project, contact Rich Reed, our Vice President of Sales and Marketing, at (513) 321-8404 or RReed@performanceplastics.com.